(PowerShell) Call an AWS Lambda Function

Demonstrates how to call an AWS Lambda function.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$rest = New-Object Chilkat.Rest

# Connect to the Amazon AWS REST server.
# such as https://email.us-west-2.amazonaws.com/
$bTls = $true
$port = 443
$bAutoReconnect = $true

# -------------------------------------------------------------------------------------------
# Note: The source of the lambda function (hosted on AWS) is shown at the bottom of this page.
# --------------------------------------------------------------------------------------------

# If your lambda function URL is: https://itwxyj3vd6gjtaerbfqnfccs2e0fplzh.lambda-url.us-west-2.on.aws/
# then use just the domain part here:
$success = $rest.Connect("itwxyj3vd6gjtaerbfqnfccs2e0fplzh.lambda-url.us-west-2.on.aws",$port,$bTls,$bAutoReconnect)

# Provide AWS credentials for the REST call.
$authAws = New-Object Chilkat.AuthAws
$authAws.AccessKey = "AWS_ACCESS_KEY"
$authAws.SecretKey = "AWS_SECRET_KEY"
# the region should match our domain above..
$authAws.Region = "us-west-2"
$authAws.ServiceName = "lambda"

$rest.SetAuthAws($authAws)

$json = New-Object Chilkat.JsonObject
$json.UpdateString("name","Benny")

$rest.AddHeader("Content-Type","application/json")

$sbRequestBody = New-Object Chilkat.StringBuilder
$json.EmitSb($sbRequestBody)

$sbResponseBody = New-Object Chilkat.StringBuilder
$success = $rest.FullRequestSb("POST","/",$sbRequestBody,$sbResponseBody)
if ($success -eq $false) {
    $($rest.LastErrorText)
    exit
}

$statusCode = $rest.ResponseStatusCode
if ($statusCode -ge 400) {
    $("Response Status Code: " + $statusCode)
    $("Response Body: " + $sbResponseBody.GetAsString())
    $("Failed.")
    exit
}

$("Response Body:")
$($sbResponseBody.GetAsString())

export const handler = async (event) => {

    let body = "Hello World";

    if (event.body) {
        const input = JSON.parse(event.body);
        if (input.name) {
            body = "Hello " + input.name;
        }
    }

    return {
        statusCode: 200,
        headers: {
            "Content-Type": "application/json"
        },
        body: JSON.stringify({
            message: body
        })
    };
};